Scan Line Graphics

Introduction

Scan line graphics has historically been the most popular
method for graphics rendering. The reason for this is that it is
the only method for 2D graphics and it is the fastest rendering
method for 3D graphics. More recently, ray tracing is increasingly
popular as a rendering technique, but most systems still use scan
line rendering, or at least have a scan line option rendering
option.

The central problem in scan -line rendering is scan
conversion, i.e., converting from a mathematical model of an
image to a framebuffer image.

We frequently talk about the "graphics pipeline" in
graphics. This consists of the following steps: